That was excellent Sebastian!
I was skeptical at first because most bloggers are not as convincing in other formats, but this worked well.
A transcript would be useful, too.
There's a guy on fiverr.com offering up to 15 minutes of audio transcribed for $5.
He seems popular (it's a top rated 'gig').
Also, I second the recommendation for oDesk.com.
Outsourcing has helped me tremendously lately.
If you continue on that topic and go into more detail, I think that you will help a LOT of people.

Please provide a summary of what you speak about, or just avoid audio and do a written blog post: just my two cents.

Sebastian
That was good; Tim Ferris couldn't have said it better.
Riley

Rss readers miss out on audio...

I think the audio was done pretty well, but I still wish the whole thing was in text so that I could go through it faster.

I like the audio idea. The quality was good. Even considering you were in a cafe or something like that. There are several audio plugins for WordPress out there that you might consider (simpler playing and downloading). A written summary or key points list for the audio is a good idea. It is easier to search the site for old stuff you talked about, and you can get a quick idea of the audio content before you commit to listening.

The idea you went over is absolutely true. It might even be more dramatic than you mentioned. If you dread working Customer Service emails, you will probably be pretty inefficient at them. If the person you hire to help with Customer Service loves it, they might finish what took you three hours in two.